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Bob Morris

Bob Morris is a horticulture expert living in Las Vegas and professor emeritus for the University of Nevada. Visit his blog at xtremehorticulture.blogspot.com. Send questions to Extremehort@aol.com.

Flower bloom determines pruning time

Question: I would like to cut back some cassia, Texas ranger and Rosemary plants that have grown too large. When is the best time to do so?

Grapes need patience when it comes to pruning

Question: When should I cut my grape vines back? They’re on a trellis and are 1 year old. During the summer, they spread out very well and produced several large groups of table grapes.

Fertilizing now will keep lawn lovely

Question: I remember you said to apply fertilizer to a lawn around Thanksgiving. But during that time, it was cold, and the fertilizer bag says to water frequently.

Culling citrus key to a healthy tree

Question: I have a Meyer lemon in a container that still has lemons on it. They are not totally ripe. What trimming should be done and what time of year?

THE LATEST
Arctic Star fruit tree works for focal points

Question: I was reading that you really like the Arctic Star nectarine tree for growing here in Las Vegas. Is this tree a dwarf? How big will it get? What do you think of planting fruit trees in the front yard (not as a focal point, but rather on the side of the house)?

Fruit variety will fight late freezes

Question: I planted an orchard about 4 years ago here in Pahrump. I planted many different fruit varieties and have come to find some of them do not work here. Their blossoms and foliage, in most cases, are very beautiful, but the fruit does not ripen. I was wondering about some other fruit trees that may work in our area.

Avoid splitting fruits with wood mulch

Question: I have a Washington navel orange which is about four or five years old. The fruit is splitting. What causes this?

Peach trees in containers tend to grow, grow, grow

Question: In March of this year I planted a 2-foot tree with few leaves. It now has grown to 4 feet with a wide spread of branches. It is planted in an 18-inch pot in the southeast section of my yard. Will this tree continue to grow in a container? If so, should I transplant it to a larger container? I grow citrus trees in containers and in the ground successfully. This is my first attempt to grow a peach tree.

Stopping the source only sure way to beat flies

Question: My husband and I spend four months away from the valley during the summer. When we returned in late September, we could not believe the number of flies in our yard, and because we are used to leaving our doors open, in our house.

Planting fruit trees between pines not the way to go

Question: I recently moved into a home in Henderson, and I have a large back yard with about seven pine trees lining the property. The trees are spaced approximately 8 feet apart. I am contemplating planting fruit trees between the pines, and once they reach maturity, I would remove the pine trees. What do you think about this approach?

Apricot spread depends on its rootstock

Question: Before I plant my apricot tree this spring, I would like to know how much space I should allocate for it. Does a Blenheim apricot lend itself to close pruning?

Elegant Amaryllis takes gentle handling

Question: I was wondering when is the best time to transplant the Amaryllis plants — now or in the spring? They bloomed beautifully this past summer but seem to be getting a bit pot-bound. I also wonder if regular potting soil is best, and when and how often they need to be fertilized?

Suffering plum may have second chance

Question: My purple plum has branches that are dying on one side of the tree. The leaves are all brown and crunchy while the other side seems healthy. Please help.

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